Sentences with phrase «sex ratio theory»
With her death, the book deal she had made with a major publisher disappeared, and sex ratio theory stayed mainly in the obscure recesses of various academic specialties.
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Owing to a quirk of ant reproductive biology, the female workers are three times more closely related to the queen's female offspring than they are to the males, so, in theory, the female workers should skew the sex ratio in favor of females.
While the concept has a long history in theory, Professor Sheldon's studies are among the few to show that females use appraisals of mates to adjust clutch sex ratios.